How fast should a fire curtain close in case of a fire?

The fire curtain should close within 30 seconds in the event of a fire. This timeline is crucial for ensuring safety in a theatre environment, as the primary function of a fire curtain is to contain smoke and flames, thereby protecting both the audience and performers. A closure time of 30 seconds allows for a rapid response while still giving enough time for individuals to evacuate the area safely. This standard is in accordance with safety codes and regulations which stipulate that fire protection systems must be effective and timely to minimize risks during emergencies.

Other options may suggest longer closure times, which could compromise safety by allowing flames and smoke to spread before the barrier is fully deployed. Thus, adhering to the 30-second guideline supports efficient fire response protocols and enhances overall fire safety in theatrical spaces.